1. if s = 3t + 5/r solve for t, in terms of s and r. 2. if s = 2t/r solve for t, in terms of s and r. 3. if 5x + 8b = 2c, solve for x in terms of a, b, and c. 4. if s = (7t + 5/2r ) - 5b solve for t, in terms of b, s, and r.

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

if graphs are part of the problem statement, share them.   .